Voltage-Controlled Resistors using JFETs
As the industry leader in JFET products, InterFET offers the widest range of options available in voltage-controlled resistors. Our extensive JFET portfolio is specifically designed to meet the circuit requirements of various industries, including instrumentation, medical devices, audio systems, automotive applications, military and aerospace technologies, as well as high-precision sensor interfaces. Regardless of the complexity of your project, InterFET has the perfect JFET solution to ensure exceptional performance.
The InterFET voltage-controlled resistor table empowers you to sort JFETs based on any desired parameter, allowing you to find the perfect component for your application. The JFETs listed in this table were carefully selected for their near-linear function, providing precise control of drain-source conductance based on the gate-source voltage.
| PRODUCT | PACKAGE | BVgss (min) V | Vgso (min) V | Vgso (max) V | Idss (min) mA | Idss (max) mA | Gm (min) mS | ēn (typ) ɳV√Hz | Ciss (max) pF | TYPE | CONFIG | ORDERING |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PRODUCT | PACKAGE | BVgss (min) V | Vgso (min) V | Vgso (max) V | Idss (min) mA | Idss (max) mA | Gm (min) mS | ēn (typ) ɳV√Hz | Ciss (max) pF | TYPE | CONFIG | ORDERING |
| 2N4338 | TO-18 | -50 | -0.30 | -1.00 | 0.20 | 0.60 | 0.60 | 6.00 | 7.00 | N-CH | SINGLE | Mouser |
| 2N4339 | TO-18 | -50 | -0.60 | -1.80 | 0.50 | 1.50 | 0.80 | 6.00 | 7.00 | N-CH | SINGLE | Mouser |
| 2N4340 | TO-18 | -50 | -1.00 | -3.00 | 1.20 | 3.60 | 1.30 | 6.00 | 7.00 | N-CH | SINGLE | Mouser |
| 2N4341 | TO-18 | -50 | -2.00 | -6.00 | 3.00 | 9.00 | 2.00 | 6.00 | 7.00 | N-CH | SINGLE | Mouser |
| PN4338 | TO-92 | -50 | -0.30 | -1.00 | 0.20 | 0.60 | 0.60 | 6.00 | 7.00 | N-CH | SINGLE | Mouser |
| PN4339 | TO-92 | -50 | -0.60 | -1.80 | 0.50 | 1.50 | 0.80 | 6.00 | 7.00 | N-CH | SINGLE | Mouser |
| PN4340 | TO-92 | -50 | -1.00 | -3.00 | 1.20 | 3.60 | 1.30 | 6.00 | 7.00 | N-CH | SINGLE | Direct |
| PN4341 | TO-92 | -50 | -2.00 | -6.00 | 3.00 | 9.00 | 2.00 | 6.00 | 7.00 | N-CH | SINGLE | Direct |
| PNVCR2N | TO-92 | -15 | -1.00 | -3.50 | 2.00 | 7.50 | N-CH | SINGLE | Direct | |||
| PNVCR3P | TO-92 | 15 | 1.00 | 5.00 | 8.00 | 25.00 | P-CH | SINGLE | Direct | |||
| PNVCR4N | TO-92 | -15 | -3.50 | -7.00 | 6.00 | 3.00 | N-CH | SINGLE | Direct | |||
| PNVCR7N | TO-92 | -15 | -2.50 | -5.00 | 8.00 | 1.50 | N-CH | SINGLE | Direct | |||
| SMP4338 | SOT-23 | -50 | -0.30 | -1.00 | 0.20 | 0.60 | 0.60 | 6.00 | 7.00 | N-CH | SINGLE | Mouser |
| SMP4339 | SOT-23 | -50 | -0.60 | -1.80 | 0.50 | 1.50 | 0.80 | 6.00 | 7.00 | N-CH | SINGLE | Mouser |
| SMP4340 | SOT-23 | -50 | -1.00 | -3.00 | 1.20 | 3.60 | 1.30 | 6.00 | 7.00 | N-CH | SINGLE | Mouser |
| SMP4341 | SOT-23 | -50 | -2.00 | -6.00 | 3.00 | 9.00 | 2.00 | 6.00 | 7.00 | N-CH | SINGLE | Mouser |
| SMPVCR11N | SOIC-8 | -25 | -8.00 | -12.00 | 4.00 | 7.50 | N-CH | DUAL | Direct | |||
| SMPVCR2N | SOT-23 | -15 | -1.00 | -3.50 | 2.00 | 7.50 | N-CH | SINGLE | Direct | |||
| SMPVCR3P | SOT-23 | 15 | 1.00 | 5.00 | 8.00 | 25.00 | P-CH | SINGLE | Direct | |||
| SMPVCR4N | SOT-23 | -15 | -3.50 | -7.00 | 6.00 | 3.00 | N-CH | SINGLE | Direct | |||
| SMPVCR7N | SOT-23 | -15 | -2.50 | -5.00 | 8.00 | 1.50 | N-CH | SINGLE | Direct | |||
| VCR11N | TO-71 | -25 | -8.00 | -12.00 | 4.00 | 7.50 | N-CH | DUAL | Mouser | |||
| VCR2N | TO-18 | -15 | -1.00 | -3.50 | 2.00 | 7.50 | N-CH | SINGLE | Mouser | |||
| VCR3P | TO-18 | 15 | 1.00 | 5.00 | 8.00 | 25.00 | P-CH | SINGLE | Mouser | |||
| VCR4N | TO-18 | -15 | -3.50 | -7.00 | 6.00 | 3.00 | N-CH | SINGLE | Mouser |